Liters to fluid ounces (l to fl oz) converter

What is a liters to fluid ounces converter?

A liters to fluid ounces converter is an online tool that turns a volume given in liters into its equivalent in fluid ounces, and back again. The liter (l) belongs to the metric system, while the fluid ounce (fl oz) is part of the customary systems still in everyday use in the United States and the United Kingdom. Because recipes, beverage labels, and product specifications cross borders constantly, being able to move between these two units quickly removes a lot of guesswork from cooking, bartending, and shopping.

US and UK fluid ounces

There are two fluid ounces in common use, and they are not the same size. The US fluid ounce (fl oz US) is the smaller of the two, with one liter equal to about 33.814 US fluid ounces. The UK or Imperial fluid ounce (fl oz UK) is slightly larger by definition, so one liter equals about 35.195 UK fluid ounces. Always confirm which fluid ounce a source intends, since mixing them produces noticeable errors over larger volumes.

How does the converter work?

You enter a value on either side of the converter and choose the matching unit from the dropdowns. The liter side accepts milliliters (mL), liters (L), and centiliters (cl), while the fluid ounce side accepts US fluid ounces (fl oz US) and UK fluid ounces (fl oz UK). As soon as you type a number, the opposite field updates automatically. Editing either side recalculates the other, so the tool is fully bidirectional: type liters to get fluid ounces, or type fluid ounces to get liters.

Formula for conversion

The conversions rely on fixed multipliers between the two systems.

For liters to US fluid ounces: $\text{fl oz (US)} = \text{Liters} \times 33.814$

For US fluid ounces to liters: $\text{Liters} = \text{fl oz (US)} \times 0.0295735$

For liters to UK fluid ounces: $\text{fl oz (UK)} = \text{Liters} \times 35.195$

For UK fluid ounces to liters: $\text{Liters} = \text{fl oz (UK)} \times 0.0284131$

Conversion table

The table below lists common liter values alongside their fluid ounce equivalents for both the US and UK measures.

Examples

Example 1: One liter of water

Convert 1 liter to US fluid ounces using the factor 33.814:

$1 \text{ L} \times 33.814 = 33.814 \text{ fl oz (US)}$

Example 2: A two-liter bottle

A common soda bottle holds 2 liters. To express that in US fluid ounces:

$2 \text{ L} \times 33.814 = 67.628 \text{ fl oz (US)}$

Example 3: Working backwards

Suppose a recipe calls for 33.814 US fluid ounces of stock and you want it in liters. Multiply by 0.0295735:

$33.814 \text{ fl oz (US)} \times 0.0295735 = 1 \text{ L}$

Example 4: One liter in UK fluid ounces

Because the Imperial ounce is smaller, one liter contains more of them. Using the factor 35.195:

$1 \text{ L} \times 35.195 = 35.195 \text{ fl oz (UK)}$

Notes

• The US and UK fluid ounces differ, so pick the correct one for your source before reading the result.
• The liter side also accepts milliliters and centiliters, which is handy when a label gives a sub-liter volume.
• Fluid ounces measure volume, not weight; converting to grams requires knowing the density of the substance.
• Keeping a single unit convention throughout a project helps prevent compounding errors.

Frequently asked questions

How many fluid ounces are in a liter?

One liter equals approximately 33.814 US fluid ounces, or about 35.195 UK (Imperial) fluid ounces.

What is the difference between US and UK fluid ounces?

The US fluid ounce is slightly larger than the UK fluid ounce as an individual unit, but because of how each system defines a pint and a gallon, a liter contains more UK fluid ounces (35.195) than US fluid ounces (33.814). Always check which standard your recipe or label uses.

How do I convert fluid ounces back to liters?

Multiply US fluid ounces by 0.0295735, or UK fluid ounces by 0.0284131, to get liters. The converter does this automatically when you type in the fluid ounce field. You can also use our fluid ounces to liters converter.

How many US fluid ounces are in 2 liters?

Multiply 2 by 33.814, which gives 67.628 US fluid ounces.

Can the converter handle small or decimal amounts?

Yes. You can enter any decimal value, and the milliliter and centiliter options on the liter side make sub-liter volumes easy to convert precisely.

Why might my conversion look wrong?

The most common cause is selecting the wrong fluid ounce type (US versus UK). Double-check the unit dropdowns and confirm the input value before trusting the result.